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E LE M E N T S

OF

GEOMETRY,

FROM THE

Latin Translation of COMMANDINE,

To which is added,

ATREATISE of the Nature and Arithmetic of

LOGARITHMS; Likewise

Another of the ELEMENTS of Plane and Spherical

TRIGONOMETRY; With
A PREFACE, shewing the Usefulness and Excel-

lency of this WORK.
By Doctor JOHN KEILL, F.R.S. and late

Professor of ASTRONOMY in Oxford.
The Whole Revised; where deficient, Supplied; where

loft, or corrupted, Restored. Also,
Many Faults committed by Dr.HARRIS, Mr.Caswell,

Mr.Heyne s, and other TRIGONOMETRICAL
WRITER S, are shewn, and in those Cases where
They are mistaken, here are given Solutions Geome-
trically True.
An ample Account of which may be seen in the PreFACE

By S A MU EL CUNN.
The TWELFTH

EDITION,
Carefully Revised and Corrected.

To which is subjoined an APPENDIX, containing the

Investigation of those Series omitted by the AUTHOR;

and the Difference between Dr. Keill and Mr. Cunn

impartially examined and adjusted.

LONDON:

Printed for W. STRAHAN. JA F. and RIVINGTON,

T. LONGMAN, B. LAW, T. CADELL, E. JOHNSTON,
G. ROBINSON, and R. BALDWIN.

MDCC LXXXII.

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